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The SCREE team gathered around John Weisheit overlooking Rapid 15
John Weisheit scouts Rapid 15 to the SCREE team
John Weisheit scouts Rapid 15 to the SCREE team
John Weisheit scouts Rapid 15 to the SCREE team

The SCREE team gathered around John Weisheit overlooking Rapid 15. John Weisheit is a river guide who has made over 400 trips through Cataract Canyon. He is describing to the SCREE team the line to take through the forthcoming sets of rapids.

The SCREE team gathered around John Weisheit overlooking Rapid 15. John Weisheit is a river guide who has made over 400 trips through Cataract Canyon. He is describing to the SCREE team the line to take through the forthcoming sets of rapids.

Tess & Rick at Cataract Canyon "Danger" sign
Tess & Rick at Cataract Canyon "Danger" sign
Tess & Rick at Cataract Canyon "Danger" sign
Tess & Rick at Cataract Canyon "Danger" sign

Tess Harden and Rick Moscati (the USGS participants for this river segment) pose for a "selfie" in front of the "Danger" sign preceeding Cataract Canyon.

Tess Harden and Rick Moscati (the USGS participants for this river segment) pose for a "selfie" in front of the "Danger" sign preceeding Cataract Canyon.

SCREE flotilla in calm waters of Stillwater Canyon
SCREE flotilla in calm waters of Stillwater Canyon
SCREE flotilla in calm waters of Stillwater Canyon
SCREE flotilla in calm waters of Stillwater Canyon

The SCREE flotilla in the calm waters of Stillwater Canyon

A raft, filled with A/V equipment and the two SCREE film makers, floating by Organ Rock Shale
The "media" boat passing by the Organ Rock Shale
The "media" boat passing by the Organ Rock Shale
The "media" boat passing by the Organ Rock Shale

Our media or film crew, Ben Kraushaar and Cody Perry, floating by the Organ Rock Shale in their boat filled with A/V equipment.

Our media or film crew, Ben Kraushaar and Cody Perry, floating by the Organ Rock Shale in their boat filled with A/V equipment.

Sunset view, looking west, at Turks Head campsite
Sunset view, looking west, at Turks Head campsite
Sunset view, looking west, at Turks Head campsite
Sunset view, looking west, at Turks Head campsite

Sunset view, looking west, at Turks Head campsite, Green River, Mile 21.

Sunset view, looking west, at Turks Head campsite, Green River, Mile 21.

Sunset view, looking east, at Turks Head campsite
Sunset view, looking east, at Turks Head campsite
Sunset view, looking east, at Turks Head campsite
Sunset view, looking east, at Turks Head campsite

Sunset view, looking east, at Turks Head campsite, Green River, Mile 21.

Sunset view, looking east, at Turks Head campsite, Green River, Mile 21.

Three SCREE hikers traversing a thin hiking trail
Hiking up to the Bowknot Bend
Hiking up to the Bowknot Bend
Hiking up to the Bowknot Bend

Three SCREE hikers traversing a thin hiking trail to the saddle that separates the two arms of the Green River that defines the Bowknot Bend at Mile 63.

Three SCREE hikers traversing a thin hiking trail to the saddle that separates the two arms of the Green River that defines the Bowknot Bend at Mile 63.

Taken from the saddle, a panoramic view of the Bowknot Bend
The Bowknot Bend
The Bowknot Bend
The Bowknot Bend

Taken from the saddle, a panoramic view of the Bowknot Bend of the Green River. The Bowknot Bend is 7 river miles around. Erosion will eventually shorten the river course considerably.

Taken from the saddle, a panoramic view of the Bowknot Bend of the Green River. The Bowknot Bend is 7 river miles around. Erosion will eventually shorten the river course considerably.

Dellenbaugh Butte along Green River
Dellenbaugh Butte along Green River
Dellenbaugh Butte along Green River
Dellenbaugh Butte along Green River

At about Mile 102 you can see Dellenbaugh Butte, which is also known as The Anvil, or Inkwell Butte. Powell camped here July 14, 1869. The majority of the butte is composed of the Summerville Formation.

At about Mile 102 you can see Dellenbaugh Butte, which is also known as The Anvil, or Inkwell Butte. Powell camped here July 14, 1869. The majority of the butte is composed of the Summerville Formation.

A view from in my tent looking out at the rocks
Morning view at Trin-Alcove Bend
Morning view at Trin-Alcove Bend
Morning view at Trin-Alcove Bend

This was the morning view from my tent at our camp (Mile 90) at Trin-Alcove Bend.

This was the morning view from my tent at our camp (Mile 90) at Trin-Alcove Bend.

SCREE boat passing under I-70 at Green River, UT
Passing under I-70 at Green River, UT
Passing under I-70 at Green River, UT
Passing under I-70 at Green River, UT

SCREE film maker, Ben Kraushaar, passes under I-70 at Green River, UT. The next time he will see a bridge over his boat will be 166 river miles away, on the Colorado River, at Hite, UT.

SCREE film maker, Ben Kraushaar, passes under I-70 at Green River, UT. The next time he will see a bridge over his boat will be 166 river miles away, on the Colorado River, at Hite, UT.

Colorful mineral deposits at Crystal Geyser
Colorful mineral deposits at Crystal Geyser
Colorful mineral deposits at Crystal Geyser
Colorful mineral deposits at Crystal Geyser

Details of Crystal Geyser can be found at https://geology.utah.gov/map-pub/survey-notes/geosights/crystal-geyser/ Photo shows tufa deposits at the geyser deposited by disolved calcium carbonate.

Details of Crystal Geyser can be found at https://geology.utah.gov/map-pub/survey-notes/geosights/crystal-geyser/ Photo shows tufa deposits at the geyser deposited by disolved calcium carbonate.

Color photograph of Paul Larmer viewing the Green River, UT from a peak at School Section camp
Paul Larmer viewing the Green River, UT
Paul Larmer viewing the Green River, UT
Paul Larmer viewing the Green River, UT

Powell 150 participant Paul Larmer, publisher of High County News, viewing the Green River, UT from the peak at School Section camp during the SCREE-USGS expedition, June 2019

Powell 150 participant Paul Larmer, publisher of High County News, viewing the Green River, UT from the peak at School Section camp during the SCREE-USGS expedition, June 2019

Color photograph of Powell 150 boats in Desolation Canyon on the Green River, UT
Powell 150 boats in Desolation Canyon on the Green River, UT
Powell 150 boats in Desolation Canyon on the Green River, UT
Powell 150 boats in Desolation Canyon on the Green River, UT

Boats in Desolation Canyon along the Green River, UT during the SCREE-USGS expedition, June 2019

Boats in Desolation Canyon along the Green River, UT during the SCREE-USGS expedition, June 2019

Daparture from Split Mountain
Daparture from Split Mountain
Daparture from Split Mountain
Daparture from Split Mountain

Jaime Delano (USGS) , Graham Lederer (USGS), and Ben Capelin (SCREE) as the expedition departs from Split Mountain Campground. The media team of Ben Kraushaar and Cody (last name unknown) follw the other boats while filiming.

Jaime Delano (USGS) , Graham Lederer (USGS), and Ben Capelin (SCREE) as the expedition departs from Split Mountain Campground. The media team of Ben Kraushaar and Cody (last name unknown) follw the other boats while filiming.

Split Mountain Looms in the Background
Split Mountain Looms in the Background
Split Mountain Looms in the Background
Split Mountain Looms in the Background

Three boats make their way around the bend near Dinosaur National Monument while the jagged edges of Split Mountain tower in the background.

Three boats make their way around the bend near Dinosaur National Monument while the jagged edges of Split Mountain tower in the background.

Bottomland View of Split Mountain
Bottomland View of Split Mountain
Bottomland View of Split Mountain
Bottomland View of Split Mountain

As Split Mountain slowly retreats from view, expedition leader Tom Minckley and Jaime Delano make their way steadily down river.

As Split Mountain slowly retreats from view, expedition leader Tom Minckley and Jaime Delano make their way steadily down river.

The Invasive Tamarisk Plant
The Invasive Tamarisk Plant
The Invasive Tamarisk Plant
The Invasive Tamarisk Plant

While the lavendar color of the Tamarisk plant is nice to see, the plant is actually an invasive species. The Tamarisk Beatle was released in 2005 to combat the spread of the plant and has been quite successful in doing so.

While the lavendar color of the Tamarisk plant is nice to see, the plant is actually an invasive species. The Tamarisk Beatle was released in 2005 to combat the spread of the plant and has been quite successful in doing so.

Mitch Eaton Fly Fishing
Mitch Eaton Fly Fishing
Mitch Eaton Fly Fishing
Mitch Eaton Fly Fishing

Mitch Eaton attempts some fly fishing ultimately to no avail while Austin Alvarado looks on. As with the original 1869 Powell expedition, catching fish in the Green River is not an easily acocmplished endeavor.

Mitch Eaton attempts some fly fishing ultimately to no avail while Austin Alvarado looks on. As with the original 1869 Powell expedition, catching fish in the Green River is not an easily acocmplished endeavor.

Tom Minkley and Nick Hammond
Tom Minkley and Nick Hammond
Tom Minkley and Nick Hammond
Tom Minkley and Nick Hammond

Tom Minckley and Nick Hammond study the shore for plant and animal species and to enjoy the beautiful landscapes as they pass by.

Tom Minckley and Nick Hammond study the shore for plant and animal species and to enjoy the beautiful landscapes as they pass by.

Pat Kikut and Graham Lederer
Pat Kikut and Graham Lederer
Pat Kikut and Graham Lederer
Pat Kikut and Graham Lederer

Pat Kikut and Graham Lederer move quietly by the beautiful geologic formations along the Green River.

Pat Kikut and Graham Lederer move quietly by the beautiful geologic formations along the Green River.